https://www.afl.com.au/news/452645/players-sourcing-supplements-outside-of-club-afl-survey
There's one that refers to the Harcourt presentation but the details are the same in both.
12 clubs conducting supplements programs with 'medium to high' use of supplements, lacking a single point of accountability, with flawed definitions of supplements and with a flawed selection of support personnel. Oh and players at 9 AFL clubs are sourcing and taking their own stuff with zero supervision.
So in simple terms clubs were using lots of supplements, which may or may not have been supplements, in programs supervised by unqualified people, without someone responsible for overseeing the whole thing, while players were taking god knows what from god knows who.
Anyone who thinks that mess didn't warrant further investigation doesn't want to know the truth.